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AssigneeExxonMobil Upstream Research Company
InventorsJohn E. Eastwood, Brian P. West, Michael D. Gross, Dwight C. Dawson, David H. Johnston
Estimating the term…
Near-offset and far-offset seismic data volumes are time-aligned by first selecting a plurality of time shifts. The near-offset and far-offset seismic data volumes are cross-correlated at the plurality of time shifts. An initial time-shift volume and a maximum correlation volume are created from the maximal cross-correlations at the plurality of time shifts. Areas of high time shift from the initial time-shift volume and areas of low cross-correlation from the maximum correlation volume are determined. The determined areas of high time shift and low cross-correlation are filtered from the initial time-shift volume, generating a filtered time-shift volume. The filtered time-shift volume is applied to the far-offset seismic volume to generate a time-aligned far-offset volume.
A method for time-aligning near-offset and far-offset seismic data volumes, comprising the steps of:
A method for producing AVO anomaly classification volumes from a near-offset seismic data volume and a far-offset seismic data volume, comprising the steps of:
A method for time-aligning a first seismic data volume and a second seismic data volume, both data volumes pertaining to the same spatial region, said method comprising the steps of:
Dependencies are inferred from the claim text.